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ASSR-322R

Part No ASSR-322R
Manufacturer AVAGO TECHNOLOGIES LIMITED
Catalog END - OF - LIFE
Description Compact Solid-State Bi-directional Signal Switch
Sample
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Manufacturer AVAGO TECHNOLOGIES LIMITED
Win Source Part Number 1147708-ASSR-322R
Manufacturer Homepage www.avagotech.com
Popularity Medium
Supply and Demand Status Balance
Ultra Librarian 3D Model Ultra Librarian ASSR-322R CAD Model

Description

The ASSR-322R is a miniature surface mount solid-state relay (SSR) manufactured by Avago Technologies (now Broadcom). Similar to the ASSR-3220, it provides high isolation voltage and current capabilities in a compact package, making it suitable for diverse switching applications. Common uses include industrial control systems, telecommunications equipment, and applications that demand reliable and electrically isolated switching.

Like other solid-state relays, the ASSR-322R leverages an LED to optically isolate the input signal from the output switching component. This optical barrier guarantees a strong level of electrical isolation between the input and output circuits. This isolation protects delicate control components from high-voltage surges and ground loops, enhancing safety and reliability. The absence of moving parts compared to electromechanical relays contributes to its robust and long-lasting performance.

Applications:

  • Industrial Automation: Ideal for switching motors, solenoids, and other industrial loads.
  • Telecom Equipment: Enables isolation and switching functionalities within telecommunications circuits.
  • Instrumentation and Measurement: Used to provide signal isolation in testing and measurement equipment.
  • Medical Devices: Ensures electrical isolation in devices directly connected to patients.
  • Power Supplies: Facilitates switching of power supply voltages while maintaining high isolation.

Features:

  • High Isolation Voltage: Offers a high level of electrical isolation between the input and output.
  • Surface Mount Design: Compact size allows for convenient PCB mounting.
  • Solid-State Construction: Enhances longevity by removing moving parts.
  • Low Input Current: Activates with minimal input current requirements.
  • Rapid Switching: Supports quick switching speeds suitable for high-frequency applications.

Benefits:

  • Increased Reliability: Minimizes the need for maintenance by eliminating mechanical wear.
  • Enhanced Safety Features: Protects control circuits with superior electrical isolation.
  • Simplified System Integration: Easy to incorporate into designs using its surface-mount package.
  • Improved Performance: Facilitates faster switching and efficient operation.
  • Reduced Footprint: Saves board space due to its compact size.

The ASSR-322R typically operates with an input voltage range of 3V to 5V, features an output voltage rating up to 60V, and handles an output current of up to 300mA. Its isolation voltage is typically 3750 Vrms. The operating temperature generally ranges from -40°C to +85°C. Comprehensive technical details, application guidelines, and design considerations are available in the official datasheet from Broadcom. Appropriate thermal management strategies should be employed, based on load current and ambient conditions, to ensure the relay's long-term operational stability. While categorized as End-of-Life, relevant datasheets and remnant stock may still be accessible.

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